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OpenStudy (shubhamsrg):
a man is standing at point A . he moves one unit in every step he takes . he can move either in horizontal or vertical direction,even backwards or forwards,left or right.. whats is the probability that he gets back to A after 9 steps ?
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OpenStudy (shubhamsrg):
am sorry there is a correction,, we have to find the probability that he is one unit away from A after 9 steps.
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